This dataset is a compilation of all 69kHz and 180kHz Vemco (a.k.a. Innovasea) detections occurring during 2012-2020 of acoustic tagged fish predators in California's Central Valley watershed. In total, the detections from 1,036 predators are contained within this dataset, with each record (row) representing one detection of an individual acoustic tag at an individual acoustic receiver. We provide this data to the public as part of a larger effort to create a standard operating procedure for classifying juvenile salmonid tag detections as either still representing the originally tagged salmonid or representing a predator who consumed the tagged salmonid.